Three-Phase AC-to-DC Resonant Converter Operating in High Power Factor Mode in High-Voltage Applications

Madhuri A. Chaudhari; Hiralal M Suryawanshi; Abhishek Kulwal; Mahesh K. Mishra

Three-Phase AC-to-DC Resonant Converter Operating in High Power Factor Mode in High-Voltage Applications

Madhuri A. Chaudhari

Hiralal M Suryawanshi

Abhishek Kulwal

Mahesh K. Mishra

Vol. 8, No. 1, pp. 60-73, Jan. 2008

10.6113/JPE.2008.8.1.60

High frequency current injection

ac-to-dc resonant converter

Power factor

Zero-voltage switching

voltage and current stresses

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Abstract

In this paper a three-phase ac-to-dc resonant converter with high input power factor and isolated output is proposed. To improve the input power factor of the converter, high frequency current is injected into the input of the three-phase diode bridge rectifier. It is injected through an impedance network consisting of a series of L-C branches from the output of the high frequency three-phase inverter. A narrow switching frequency variation is required to regulate the output voltage. A design example with different design curves is illustrated along with the component ratings. Experimental verification of the converter is performed on a prototype of 3 kW, 1000 V output, operating above 300 kHz. Experimental results confirm the concept of the proposed converter. Narrow switching frequency variation is required to regulate the output voltage.

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Cite this article

[IEEE Style]

M. A. Chaudhari, H. M. Suryawanshi, A. Kulwal, M. K. Mishra, "Three-Phase AC-to-DC Resonant Converter Operating in High Power Factor Mode in High-Voltage Applications," Journal of Power Electronics, vol. 8, no. 1, pp. 60-73, 2008. DOI: 10.6113/JPE.2008.8.1.60.

[ACM Style]

Madhuri A. Chaudhari, Hiralal M Suryawanshi, Abhishek Kulwal, and Mahesh K. Mishra. 2008. Three-Phase AC-to-DC Resonant Converter Operating in High Power Factor Mode in High-Voltage Applications. Journal of Power Electronics, 8, 1, (2008), 60-73. DOI: 10.6113/JPE.2008.8.1.60.